2238. If you do the same thing to all these characters, they will become other characters. 魚 山 小 言 ⼌+二+八+一


魚  GYO, sakana, uo - fish

山  SAN, yama - mountain

小  SHOU, chii(sai), ko - small

言  GEN, GON, i(u), koto - say, speech

⼌+二+八+一  The "Keigamae" radical - to enclose / NI, futa(tsu), futa - two / HACHI, ya(ttsu), ya(tsu), ya, yo - eight / ICHI, ITSU, hito(tsu) - one

Add 同 (DOU, TOU, ona(ji) - same), and they are definitely not the same!  

鮦  TOU, ZU, katsuo - snakefish

峒  TOU, ZU - a mountain in China

恫  TOU, ZU, ita(mu) - to suffer, to threaten 

詷  TOU, ZU, onaji - together, to exaggerate

圓  EN, marui, madoka - round